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Michael Redgrave as Sir Arthur Benson-Gray |
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Tony Britton as Philip Selwood |
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Carl Möhner as Carl Romek |
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Niall MacGinnis as Neil Isherwood |
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Vanessa Redgrave as Pamela Benson-Gray |
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Ian Bannen as Alan Crabtree |
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Brenda Bruce as Elizabeth Fallon |
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Lionel Jeffries as Walter Froy |
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Miles Malleson as Sir Oswald Pettiford |
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John Welsh as Colonel Langley |
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Ann Firbank as Mrs. Judson |
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Jack Hedley as Dr. Galbraith |
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Hugh Miller as Examiner |
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Mary Skinner as Theatre Sister |
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Margaret Tyzack as Night Sister |
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William Roache as Young Doctor (uncredited) |
| Directing | Brian Desmond Hurst | Director |
| Directing | Michael Stevenson | Third Assistant Director |
| Sound | Buster Ambler | Sound Recordist |
| Writing | John Rowan Wilson | Novel |
| Sound | Geoffrey Wright | Original Music Composer |
| Costume & Make-Up | Michael Morris | Makeup Artist |
| Production | R.L.M. Davidson | Production Manager |
| Writing | John Hunter | Screenplay |
| Production | Josef Somlo | Executive Producer |
| Sound | John Cox | Sound Supervisor |
| Production | Sergei Nolbandov | Producer |
| Art | William Kellner | Production Design |
| Costume & Make-Up | Cynthia Tingey | Costume Design |
| Costume & Make-Up | Eileen Warwick | Hairdresser |
| Camera | Robert Krasker | Director of Photography |
| Editing | Allan Morrison | Editor |
| Production | Thelma Graves | Casting |
| Costume & Make-Up | Barbara Gillett | Wardrobe Master |
